Tamron Tripod Mount for 100-400mm and 50-400mm

This is an Arca Swiss-compatible Tamron Tripod Collar for the Tamron 100-400mm F4.5-6.3 Di VC USD Canon/Nikon fit ultra-telephoto zoom lens. It provides additional support and stability and allows the lens to be mounted on a tripod.

Price: 109.99 from Wex Photo Video